Add WM_EVENT_TRUSTED_PIN and WINDOW_STATE_TYPE_TRUSTED_PINNED to Ash.

ash/common/wm/window_state.cc

Index: ash/common/wm/window_state.cc
diff --git a/ash/common/wm/window_state.cc b/ash/common/wm/window_state.cc
index aa8e4aa4ab396c4dad36b703d2e7b2f6c4b446a8..abcd56d2121d4439ac49bf1c6c8aa5e423bc6c17 100644
--- a/ash/common/wm/window_state.cc
+++ b/ash/common/wm/window_state.cc
@@ -75,8 +75,7 @@ bool WindowState::IsFullscreen() const {
 
 bool WindowState::IsMaximizedOrFullscreenOrPinned() const {
   return GetStateType() == WINDOW_STATE_TYPE_MAXIMIZED ||
-         GetStateType() == WINDOW_STATE_TYPE_FULLSCREEN ||
-         GetStateType() == WINDOW_STATE_TYPE_PINNED;
+         GetStateType() == WINDOW_STATE_TYPE_FULLSCREEN || IsPinned();
 }
 
 bool WindowState::IsSnapped() const {
@@ -85,7 +84,8 @@ bool WindowState::IsSnapped() const {
 }
 
 bool WindowState::IsPinned() const {
-  return GetStateType() == WINDOW_STATE_TYPE_PINNED;
+  return GetStateType() == WINDOW_STATE_TYPE_PINNED ||
+         GetStateType() == WINDOW_STATE_TYPE_TRUSTED_PINNED;
 }
 
 bool WindowState::IsNormalStateType() const {